Portable telephone



FIG. 1 is a top perspective view of a portable telephone showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a right side elevational view thereof; and,

FIG. 8 is a persepctive view in an open condition thereof.

The portions of the article not shown in the drawing or described in the specification form no part of the claimed desing. 

The ornamental design for a portable telephone, as shown and described. 